Fohhn, LFi-350 Install Series Active Electronically Steerable Line Array Speaker 24x4" 24DSP Zwart

LFI-350
electro-acoustical features
acoustic design	electronically steerable line array speaker
components [*]	24x 4“ impreg. speaker membranes (fully neodymium)
operating mode	active, 24-channel DSP amplifier, class D
sensitivity[4]	115,5 dB
power rating (peak)[3]	133,5 dB
frequency range[5]	60 Hz - 17 kHz
nominal dispersion [6] horizontal	110°
vertical dispersion, electronically steerable	0°- 90°
vertical sound inclination angle, electronically steerable	-40° - +40°
features
enclosure	Aluminium design
protection grille	ball impact resistant metal, powder coating
suspension points	10x M6 thread
standard colours	black anodized or white powder coating
front design	metal grille in enclosure colour
dimensions (W x H x D)	130 x 3490 x 120 mm
weight[7]	25 kg
optional features
optional colours	all RAL-colours
electronic performance
amplifier output	24x 100 W
amplifier type	Pure Path Digital PWM
audio inputs	2 independent line inputs with automatic priority, symmetrical transformers
audio outputs	2x link
DSP channels, Fohhn Audio DSP	24
amplification	25 dB
input sensitivity	1,4 V
frequency response	20 Hz - 20 kHz
S/N Ratio	>105 dB/A
protective circuit	soft start, temperature monitoring, short-circuit protection, overload
power supply	100 V - 240 V AC 8A 50/60 Hz power supply with Power Factor Correction
current consumption	standby 10 W, max 1200 W
low power	Green Power Standby Mode
temperature range	0 - 40°C
cooling	termperature-controlled fan
weight electronic	ca. 5 kg
remote control, remote monitoring and simulation
remote control	Fohhn-Net, Fohhn Audio Soft
remote monitoring	temperature, protect, signals, power supply Fohhn-Net, Fohhn Audio Soft
fault message contact	relay 2x alter
Simulation Beam	Fohhn-Net, Fohhn Audio Soft
controller
digital signal prozessors	2
independent limiters	4
selektive 3-band limiting	bass/ mid/ high
band specific time constants
filter technology	56-bit double precision
AD	24 bit/ 96 kHz
FIR filters
gain	-80 dB - +12 dB
volume	-80 dB - +12 dB
EQ	10-band parametric EQ gain +/-12 dB frequency range 10 - 20 kHz Q 0,1 - 100
limiter compressor
noise gate
X-Over	Linkwitz-Riley 4. order 24 dB/ octave high pass 10 Hz - 20 kHz low pass 10 Hz - 20 kHz
delay	0,01 - 350 ms or 3,4 mm - 120 m
controls (built-in Phoenix terminals)
Fohhn-Net	2x in/ thru Phoenix terminals
mains connections	2 pol Phoenix terminal, grounding screwed
emergency current	24 V /16 A
audio inputs	2 independent line inputs with automatic priority, symmetrical transformers
audio outputs	2x link
fault contact	relay 2x alter, link
indicate LEDs (built-in)
power on/ off (standby)	green = on, red = standby red flashing = fault
network control	receive/ send remote control LED
CAAD simulation data
simulation data	EASE (in preparation)
To configure the Linea Focus the Fohhn Audio Soft V3 is indispensable. For connecting the it to a PC the Fohhn-Net Adaptor NA-1 is necessary.
[3] Peak, 20 ms with bandpass filtered pink noise signal according to IEC 60268-2 at one octave above the lower limit of the frequency range.
[4] 2,83 V at 8 ohms (2 V at 4 ohms, 4 V at 16 ohms) at a distance of 1 meter under anechoic fullspace conditions
[5] -10 dB under anechoic halfspace-conditions
[6] horizontal x vertical at -6 dB
[7] net weight without optional equipment

---

---

---

Electronically steerable active line source speaker

Powerful active, electronically steerable line source speaker with aluminium enclosure, equipped with 24 coated, long stroke 4” – drivers and digital 24-channel DSP amplifiers. Because of the application of neodymium chassis and an aluminium enclosure, the speaker remains light with only 25 kg. Perfectly suited for dynamic speech- and music transmissions in rooms with demanding acoustics, long reverberation times and challenging architecture. The 24 integrated digital amplifiers with 100W each generate acoustic pressure of maximal 133,5 dB. The speaker has a wide frequency range of 60Hz to 17kHz. The horizontal dispersion of 110° and the adjustable vertical sound inclination angle of 0° to 90° in steps of 1° allow an exact adjustment onto the audience. The inclination angle of the beam can be adjusted from + 40° to - 40° in steps of 0,5°. The Linea focus system can generate two dispersion beams and is therefore able to reach additional areas such as galleries. It is possible to high-pass filter the beams separately. Unwanted side lobes which occur because of interferences are suppressed effectively through a specially developed Optimize-Algorithm. The adjustment and monitoring of all parameters is controlled in real time with Fohhn Audio Soft V3.0. The handling is easy and intuitive done via mouse click. The dispersion of the speaker, the sound level and the frequency are graphically visualized. Two symmetrical transformers, independent line inputs, alive contact for an analogue evaluation of the operating status, 24V emergency current, control and intelligent evaluation of all important parameters. Optically appealing, slim and inconspicuous aluminium enclosure with rounded sides, available in black anodized or white matt varnish. Optional available in all RAL-colours. For the protection of the speaker chassis and the electronics, the enclosure is equipped with a ball impact resistant, extremely sound-permeable front grille, which is made of powder-coated steel as well as a moisture- and dust repellent acoustic fleece. Highly efficient Green Power supply with a maximum activity input of 10W in stand-by mode. 10 pieces M6 thread applications are integrated to the admission of system brackets. Connections: internal Phoenix terminals and a cable duct on the back. Specific brackets to assemble the system on ceilings, walls, traverses and stands are optionally available. Simulation data CAAD for EASE are in preparation.

electro-acoustical features
acoustic design: electronically steerable line array speaker
components: 24x 4“ impregnated speaker membranes (fully neodymium)
operating mode: active, 24-channel DSP amplifier, Class D
sensitivity: 115,5 dB
power rating (peak): 133,5 dB
frequency range: 60 Hz - 17 kHz
nominal dispersionhorizontal: 110°
vertical dispersion, electronically steerable 0°- 90°
vertical sound inclination angle, electronically steerable: -40° - +40°

features
enclosure: aluminium design
protection grille: ball impact resistant metal, powder coated
suspension points: 10x M6 thread
standard colours: black or white powder coated
front design: metal grille in enclosure colour
dimensions (W x H x D): 130 x 3490 x 120 mm
weight: 25 kg

optional features
optional colours: all RAL-colours

electronic performance
amplifier output: 24x 100 W
amplifier type: Pure Path Digital PWM
audio inputs: 2 independent line inputs with automatic priority, symmetrical transformers
audio outputs: 2x link
DSP channels, Fohhn Audio DSP: 24
amplification: 25 dB
input sensitivity: 1,4 V
frequency response: 20 Hz - 20 kHz
S/N Ratio: >105 dB/A
protective circuit: soft start, temperature monitoring, short-circuit protection, overload
power supply: 100 V - 240 V AC 8A 50/60 Hz, power supply with Power Factor Correction
current consumption: standby 10 W, max 1200 W
low power: Green Power Standby Mode
emergency current possible: 24 V / 16 A, 12..64 V external, with external voltage transformer, internal cutout
temperature range: 0 - 40°C
cooling: temperature-controlled fan
weight electronic: ca. 5 kg

remote control, remote monitoring and simulation
remote control: Fohhn-Net, Fohhn Audio Soft
remote monitoring: temperature, protect, signals, power supply, Fohhn-Net, Fohhn Audio Soft
fault contact: relay 2x alter
Simulation Beam: Fohhn-Net, Fohhn Audio Soft

controller
digital signal processors: 2
independent limiters: 4
selective 3-band limiting: bass/ mid/ high
band specific time constants
filter technology: 56-bit double precision
AD: 24 bit/ 96 kHz
FIR filters
gain: -80 dB - +12 dB
volume: -80 dB - +12 dB
EQ: 10-band parametric EQ, gain +/-12 dB, frequency range 10 - 20 kHz, Q 0,1 - 100 limiter compressor
noise gate
X-Over: Linkwitz-Riley 4. order, (24 dB/ octave), high pass: 10 Hz - 20 kHz, low pass: 10 Hz - 20 kHz
delay: 0,01 - 350 ms (or 3,4 mm - 120 m)

connections (internal Phoenix terminal in the enclosure)
Fohhn-Net: 2x in/ thru Phoenix terminals
mains connections: 2 pol Phoenix terminal, grounding screwed
emergency current: 24 V /16 A
audio inputs: 2 independent line inputs with automatic priority, symmetrical transformers
audio outputs: 2x link
fault contact: relay 2x alter, link

controls
power on/ off: button illuminated (standby): green = on, red = standby, red flashing = fault
network control: receive/ send remote control LED

CAAD Simulationsdaten
simulation data: EASE (in preparation)

make: Fohhn Audio AG
type: LFI-350